Attachment for stoves



(No Model.)

W. PRICE.

ATTAGHMBNT FOR STOVES.

No. 480,828. Patented Aug. 16, 1892.

'mE News PETERS co., moroumo vusnme'rcn n c UNITED STATES PATENTOFFICE.-

IVILLIAM PRICE, OF MENDOTA, ILLINOIS.

ATTACHMENT FOR STOVES.

SPECIFICATION forming part of Letters Patent No. 480,828, dated August16, 1892.

Application filed April 28, 1891. Serial No. 390,782. (No model.)

To all whom it may concern:

Be it known that 1, WILLIAM PRICE, a citizen of the United States,residing at Mendota, in the county of La Salle and State of Illinois,have invented certain new and useful Improvements in Attachments forStoves; and I do hereby declare the following to be a full, clear, andexact description of the invention, which will enable others skilled inthe art to which it appertains to make and use the same.

My invention relates to various attachments to the ordinary coal-burningheating-stove, whereby a better combustion and heat will be obtained atthe expenditure of a smaller amount of fuel than heretofore.

My improved attachment is extremely simple in construction and can bemanufactured very readily and cheaply. Moreover, it may be quicklyattached to any of the well-known forms of coal-burning heating-stoveswithout the necessity of making any material modifications therein. Toaccomplish these ends I make use of a perforated flue fitting around theinterior of the stove directly above the fire and connected with anotherflue which extends outside of the stove down to point near the floor.Thelast-mentioned or outside flue is provided with a number of series ofperforations near its lower end and with a sliding cap thereon, whichmay be moved up or down on the outside flue, so as to close or open agreater or lesser number of perforations. In this way the supply of airto the interior flue may be easily regulated with a high degree ofaccuracy. When a fire is built within the stove, it will heat theinterior flue, so as to cause a circulation of cold air to pass up theoutside flue into the interior flue. This cold air will then pass outthrough the perforations in the interior flue and will impinge againstthe fire in minute streams or jets. It has been found that these jets ofcold air in flowing upon the fire greatly increase the heating qualitiesof the stove, probably for the reason that a much more perfectcombustion is had than heretofore. The increase in the heating effectsof a stove equipped with my improved attachment is probably furtherattributable to the fact that the jets of air will commingle with allgases generated by the combustion of the coal, particularly soft coal,

and which will therefore be burned. This featureof the inventiontherefore not only renders the stove particularly effective, but it alsomakes the stove much safer than heretofore, for it will be rememberedthat when soft coal has been consumed in ordinary heating-stoves beforemy invention a considerable amount of gas was evolved, which, flowingout into the room, constituted a continual menace to life and property.

In addition to the fact that by the use of my invention a bettercombustion is obtained and consequently more heat is generated, I havefound that a considerable economization of fuel is obtained, so that astove may be operated more cheaply than heretofore. It will therefore beseen from the above thatI have devised an invention which possesses manyimportant advantages and which should therefore commend itself to thepublic.

For a better comprehension of my invention attention is directed to theaccompanying drawings, forming a part of this specification, and inwhich Figure l is a sectional view of an ordinary heating-stove, showingmy invention attached thereto; and Fig. 2 a perspective view of myimproved attachment detached from the stove.

For convenience the same parts of the device in both of the above viewsare designated by the same letters of reference.

A is an ordinary coal-burning heating-stove made of cast metal or sheetmetal, or of both, if desired.

B is the fire-box of the stove, into which the ashes are shaken, asheretofore.

O is the body or radiating portion of the stove, which is provided witha door or opening, through which the coal or fuel is poured.

D is the grate of the stove on which the fire is built. This grate ismade usually so as to be shaken or dumped, in order to be relieved ofashes. E is the interior flue, which I have heretofore referred to. Thisflue extends entirely around the inside of the stove directly above thefire-box, as shown in Fig. 1. I prefer to make this flue E of pipe,either of iron, copper, or other material and with one end closed. Thisflue is provided on its under side with small perforations a a.

F is the outside flue before mentioned, and

which connects with the open end of the interior flue. The outside flueF passes out through an opening in the side of the stove, as shown, andthence vertically downward to a point near the floor. The outside flue Fis provided near its lower end with a number of smallperforations I),through which air is admitted to the outside flue.

G is a cap, which fits over the lower end of the outside flue F with aconsiderable amount of friction, so that it will retain its position onany point of its path of movement. By moving the cap G up or down on theflue F a greater or lesser number of perforations b may be opened,whereby the amount of air passing to the flue F may be accuratelyregulated.

The interior flue E is supported at one side by the horizontal portionof the fiueF and on the other side by a lug or stop 0, which is formedupon or secured to the inside'wall of the stove.

The operation of my improved device will be readily understood and is asfollows: The fire within the stove will heat the interior flue E, sothat the air within the same will be driven out through the perforationsa a upon the fire. The air will be replaced by cold air entering throughthe perforations b b, and which will in turn pass out through theperforations a. In this way a continuous circulation of air ismaintained through the two flues with the eifects before pointed out.

Having now described my invention, what I claim as newtherein, anddesire to secure by Letters Patent, is as follows:

An improved attachment for stoves, consisting of a tube closed at bothends, curved in the form of a circle or a part of a circle, andperforated on the inside of said bent portion of said tube and soarranged as to force the air in a downward direction and which isadapted to be placed above the grate and a part adapted to be placedoutside of the stove and arranged in aperpendicular position andperforated near its lower extremity, in combination with a sleeveadapted to slide upon said perpendicular part of the tube, substantiallyas and for the purposes described.

- WILLIAM PRICE.

In presence of- L. 13., CROOKER, E. J. STATEN.

